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commit677733e296upstream. The store ordering vs tlbie issue mentioned in commita5d4b5891c("powerpc/mm: Fixup tlbie vs store ordering issue on POWER9") is fixed for Nimbus 2.3 and Cumulus 1.3 revisions. We don't need to apply the fixup if we are running on them We can only do this on PowerNV. On pseries guest with KVM we still don't support redoing the feature fixup after migration. So we should be enabling all the workarounds needed, because whe can possibly migrate between DD 2.3 and DD 2.2 Fixes:a5d4b5891c("powerpc/mm: Fixup tlbie vs store ordering issue on POWER9") Cc: stable@vger.kernel.org # v4.16+ Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20190924035254.24612-1-aneesh.kumar@linux.ibm.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.